Just speculating, but there might be some UX justification. If you're reading a length bulleted list, and one of the items strikes you as shareworthy, I think

Just speculating, but there might be some UX justification. If you're reading a length bulleted list, and one of the items strikes you as shareworthy, I think it actually kind of makes sense to make it easy to link to that exact bullet. The alternative is making users share the root URL, or scroll back to a menu and click a link to get the url directly to that #anchor.